Several points of cutting down trees in winter

Winter pruning, also called dormant pruning, can be carried out from the end of autumn when branches stop growing to the beginning of spring when sap flows. Because pruning after dormancy is the most difficult and has the least impact on the metabolism of trees, a large amount of pruning is carried out in autumn and winter, but it is best to prune in early spring in cold areas in winter to avoid being hurt by wind and cold.

1. Prune trees according to different uses: different pruning methods will form different ornamental effects, and different uses have their own special requirements for pruning. For example, as a street tree, paulownia should be pruned into a cup shape to avoid the high altitude line, while as a courtyard tree, it should adopt a natural tree shape.

2. Pruning according to the biological characteristics of flowers and trees: the pruning degree is different in different growth periods, and the young trees are lightly pruned; For adult flowering shrubs, attention should be paid to adjusting the contradiction between growth and flowering and fruiting; Old trees should be cut down again.

3, according to the tree species: such as cedar, magnolia and so on. It has the advantage of strong top to keep the trunk and middle trunk; Osmanthus fragrans, gardenia, etc. If the top is not strong and the branch force is weak, do not leave it in the middle of plastic surgery to form a spherical or hemispherical shape.

4. Prune according to the location, nature and flowering of flower buds: shrubs that bloom in spring usually have flower buds on annual branches, so be sure to pay attention to the location of flower buds during dormancy, such as bauhinia and peach blossom. Summer civilized species, flower buds are formed on new branches born that year, such as Lagerstroemia indica and hibiscus.

5. According to the environmental conditions for the growth of flowering shrubs: different ecological environments have different pruning methods; Different configuration environments have different pruning methods, and now the landscape layout of garden plants is very different from the past. The arrangement of trees, shrubs and flowers is flexible and diverse. Even when the same plant is pruned, it should be pruned according to its planting position, mode, role in landscape layout and the original intention of landscape designers, so as to promote the formation of plant landscape as soon as possible.